<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="分类名称" prop="typeName">
        <el-input
          v-model="queryParams.typeName"
          placeholder="请输入分类名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['product:type:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-sort"
          size="mini"
          @click="toggleExpandAll"
          >展开/折叠</el-button
        >
      </el-col>
      <right-toolbar
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="typeList"
      row-key="typeId"
      :default-expand-all="isExpandAll"
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
    >
      <el-table-column label="分类名称" prop="typeName" />
      <el-table-column
        label="分类图片"
        align="center"
        prop="typeImage"
        width="100"
      >
        <template slot-scope="scope">
          <image-preview :src="scope.row.typeImage" :width="50" :height="50" />
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" prop="typeTop" />
      <el-table-column label="状态" align="center" prop="typeStatus">
        <template slot-scope="scope">
          <el-tag type="success" v-if="scope.row.typeStatus == 0">显示</el-tag>
          <el-tag type="primary" v-if="scope.row.typeStatus == 1">隐藏</el-tag>
        </template>
      </el-table-column>
      <el-table-column label="父级ID" align="center" prop="typePid" />
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['product:type:edit']"
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['product:type:add']"
            >新增</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['product:type:remove']"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页组件 -->
    <div class="pagination-container">
      <el-pagination
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        :current-page.sync="queryParams.pageNum"
        :limit.sync="queryParams.pageSize"
        :page-sizes="[5, 10, 20, 50]"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </div>

    <!-- 添加或修改商品分类管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="typeName">
          <el-input v-model="form.typeName" placeholder="请输入分类名称" />
        </el-form-item>
        <el-form-item label="分类图片" prop="typeImage">
          <image-upload v-model="form.typeImage" />
        </el-form-item>
        <el-form-item label="排序" prop="typeTop">
          <el-input v-model="form.typeTop" placeholder="请输入排序" />
        </el-form-item>
        <el-form-item label="父级ID" prop="typePid">
          <treeselect
            v-model="form.typePid"
            :options="typeOptions"
            :normalizer="normalizer"
            placeholder="请选择父级ID"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listType,
  getType,
  delType,
  addType,
  updateType,
} from "@/api/product/type";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
  name: "Type",
  components: {
    Treeselect,
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 商品分类管理表格数据
      typeList: [],
      // 商品分类管理树选项
      typeOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 总记录数
      total: 0,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 5,
        typeName: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        typeName: [
          { required: true, message: "分类名称不能为空", trigger: "blur" },
        ],
        typeImage: [
          { required: true, message: "分类图片不能为空", trigger: "blur" },
        ],
        typeTop: [{ required: true, message: "排序不能为空", trigger: "blur" }],
        typeStatus: [
          { required: true, message: "状态不能为空", trigger: "change" },
        ],
        typePid: [
          { required: true, message: "父级ID不能为空", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询商品分类管理列表 */
    getList() {
      this.loading = true;
      listType(this.queryParams)
        .then((response) => {
          console.log("API Response:", response);
          // 检查response.data是否存在rows属性
          if (response.data && response.data.rows) {
            this.typeList = this.handleTree(
              response.data.rows,
              "typeId",
              "typePid"
            );
            this.total = response.data.total;
          } else {
            // 如果没有rows属性，假设data本身就是数据数组
            this.typeList = this.handleTree(
              response.data || [],
              "typeId",
              "typePid"
            );
            this.total = response.data ? response.data.length : 0;
          }
          this.loading = false;
        })
        .catch((error) => {
          console.error("API Error:", error);
          this.loading = false;
        });
    },
    /** 分页大小改变 */
    handleSizeChange(pageSize) {
      this.queryParams.pageSize = pageSize;
      this.getList();
    },
    /** 分页当前页改变 */
    handleCurrentChange(pageNum) {
      this.queryParams.pageNum = pageNum;
      this.getList();
    },
    /** 转换商品分类管理数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.typeId,
        label: node.typeName,
        children: node.children,
      };
    },
    /** 查询商品分类管理下拉树结构 */
    getTreeselect() {
      listType().then((response) => {
        this.typeOptions = [];
        const data = { typeId: 0, typeName: "顶级节点", children: [] };
        data.children = this.handleTree(response.data, "typeId", "typePid");
        this.typeOptions.push(data);
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        typeId: null,
        typeName: null,
        typeImage: null,
        typeTop: null,
        typeStatus: null,
        typePid: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      this.getTreeselect();
      if (row != null && row.typeId) {
        this.form.typePid = row.typeId;
      } else {
        this.form.typePid = 0;
      }
      this.open = true;
      this.title = "添加商品分类管理";
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false;
      this.isExpandAll = !this.isExpandAll;
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      if (row != null) {
        this.form.typePid = row.typePid;
      }
      getType(row.typeId).then((response) => {
        this.form = response.data;
        this.open = true;
        this.title = "修改商品分类管理";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          if (this.form.typeId != null) {
            updateType(this.form).then((response) => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addType(this.form).then((response) => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal
        .confirm('是否确认删除商品分类管理编号为"' + row.typeId + '"的数据项？')
        .then(function () {
          return delType(row.typeId);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
  },
};
</script>
